Answer:
V = 8796.45
Explanation:
Given data :
A lamp shade is in the form of a frustum of a cone.
The upper diameter of the cone, r = 10 cm
The lower diameter of the cone, R = 20 cm
The height of the frustum, h = 12 cm
Therefore, the volume of the frustum of cone is given by :
Putting the values, we get
V = 8796.45
Thus the volume of the frustum of cone is V = 8796.45